Carbon nanotube growth from titanium-cobalt bimetallic particles as a catalyst

Shintaro Sato; Akio Kawabata; Daiyu Kondo; Mizuhisa Nihei; Yuji Awano

doi:10.1016/j.cplett.2004.12.018

Carbon nanotube growth from titanium-cobalt bimetallic particles as a catalyst

Shintaro Sato, Akio Kawabata, Daiyu Kondo, Mizuhisa Nihei, Yuji Awano

Research output: Contribution to journal › Article

50 Citations (Scopus)

Abstract

Bimetallic particles of Ti and Co have been used to grow multi-walled carbon nanotubes (MWNTs) to study the effects of Ti on the growth. The particles were generated by laser ablation and size-classified with a differential mobility analyzer. Diameter-controlled MWNTs were grown on a silicon substrate from 5-nm particles by thermal chemical vapor deposition using acetylene at 510 and 610°C. Titanium has been found to enhance the MWNT growth significantly. There is an optimum Ti fraction for the growth, as confirmed by evaluation of the growth probabilities of MWNTs. A possible mechanism of growth enhancement by Ti is discussed.

Original language	English
Pages (from-to)	149-154
Number of pages	6
Journal	Chemical Physics Letters
Volume	402
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2004.12.018
Publication status	Published - 2005 Jan 24
Externally published	Yes

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ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

Cite this

Sato, S., Kawabata, A., Kondo, D., Nihei, M., & Awano, Y. (2005). Carbon nanotube growth from titanium-cobalt bimetallic particles as a catalyst. Chemical Physics Letters, 402(1-3), 149-154. https://doi.org/10.1016/j.cplett.2004.12.018

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Access to Document

10.1016/j.cplett.2004.12.018